Cooper Williams

Cooper Williams is an American professional tennis player. He has a career-high ATP singles ranking of No. 660 achieved on 29 September 2025 and a best doubles ranking of No. 473 achieved on 8 September 2025.
Williams won the boys' doubles title at the 2023 Australian Open, with countryman Learner Tien. He reached an ITF junior combined ranking of world No. 3 on 28 August 2023.

Early life

Born and raised in New York City, Williams attended St. Bernard's School on the Upper East Side from Kindergarten to seventh grade. He graduated from Dwight School Global in June 2023. Williams relocated to Boca Raton, Florida during the Covid pandemic, where he works with fitness coach, Richard Woodruff.

Career

Alongside partner Learner Tien, Williams won the junior Australian Open doubles in January 2023, defeating Alexander Blockx and João Fonseca in the final 6–4, 6–4.
In August 2025, he made his main draw grand slam debut alongside Theodore Winegar at the 2025 US Open, having received the US collegiate wildcard into the men's doubles having won the inaugural American Collegiate Wildcard Playoff in Orlando. In the first round they defeated Czech pairing Petr Nouza and Patrik Rikl in straight sets before facing previous finalists and the No. 4 seeds Kevin Krawietz and Tim Puetz.

College

Williams played his Freshman season of college tennis at Harvard, where he earned All-America singles status and 2024 NCAA Rookie of the Year. He led the Crimson to its highest NCAA ranking in program history, #6 in the nation. Williams now plays for Duke University.

ITF World Tennis Tour finals

Singles: 2 (2 titles)

Result

W–L

Date

Tournament

Tier

Surface

Opponent

Score

Win

1–0

M15 Monastir, Tunisia

WTT

Hard

dts|Jun 2025

Doubles: 6 (4 titles, 2 runner-ups)